Liquid crystal display device

A liquid crystal display device includes a display area, a peripheral area, and a boundary area between the display area and the peripheral area and further includes: a first substrate; a switching element disposed on the first substrate in the display area; a pad disposed on the first substrate in the peripheral area and electrically connected with the switching element; a protective film disposed on the first substrate in the display area, the peripheral area, and the boundary area, and covering the switching element and the pad; a color filter disposed on the protective film in the display area; and a planarization film covering the color filter and contacting the protective film in the boundary area and the peripheral area. The planarization film is provided with a first opening overlapping the pad and at least one second opening formed in the boundary area.